Spring structure.



'PAQELITEJJ OCT. 20, 1903..

B. A. HOEF'ER. SPRING STRUCTURE. AJPLIOATION rum) m. 5, 19031 HO MODEL: j/

W1 r E5SE5 of each strand of wire with each strand it but the structure illustrated in Fig. 1 is sufthe same length and width as the rows of shook, the terminal loops of which engage No; 742,1 17. UNITED STATES Patented October 20, 1903.

PATENT O ICE.

EMIL HOEFER, OF. FREEPORT,.ILLINOIS, ASSIGNOR TO FREEPORT SPRING COMPANY, OF FREEPOR'I, ILLINOIS, A CORPORATION OF ILLINOIS.

SPRING STRUCTURE.

SPECIFICATION forming part of Letters Patent No. 742,117, dated October 20, 1903.

Application filed April 7, .1903.

To all whom it may concern."

Be it known that I, EMIL A. HOEFER, a citizen of the United States of America, resid-- ing at Freepcrt, in the county of Stephenson and State of Illinois, have invented certain new and useful Improvements in Spring Structures, of which the'following is a speoi-' fication.

The object of my invention is the production of a spring structure wherein a plurality of spiral springs arranged at equal'di'st-ances from each other in rectilinear rows are secured to a rectangular frame provided with transversely-crossed strand-wires fastened at their ends to such'frame by means of tie-rods extending from the intersection crosses and terminating at each end in an the intersecting strand-wires, and the remaining and adjacent loops of which engage the upper coils of the spiral springs; and it consists of astructure formed of the elements enumerated above when fashioned,arranged, and secured together in the manner set forth.

Referring to the accompanyingdrawings, which form a part of this specification, Figure 1 is a top plan View of a spring structure embodying my invention. Fig. 2 is a section at the dotted line 2 2 in Fig. l of parts there shown. Fig. 3 is a view of one of the tierods of the structure. Fig. 4 is also a view of the same with one end shortened and modified in form to adapt it for connection with the rectangular framework of the structure.

In actual use a much larger number of springs and a larger inclosing franie are used;

ficient to clearly set forth my invention.

Like letters of reference indicate corresponding parts throughout the several views. A represents a plurality of spiral springs arranged at equal distances from each other and in rectilinear rows.

B is a rectangular fraine'of substantially springs A.

Serial No. 151.554. (No model.)

C C are two strands of wire extending across the ends of each row of springs A and O O across the ends of each row of springs A' and secured to the two .remaining opposite and parallel sides B B of the rectangular frame B. I

E represents tie-rods extending from the intersection of each strand of wire with each strand it crosses and terminating at each end in an S-hook, the terminalloops S of which engage the intersecting strand-wires, and the remaining and adjacent loops S of which ongage the upper coils of the spiral springs A, thereby securing each springA to four intersecting strand-wiresand the strand-wires together at all their intersections. I This structure will be found .to be very useful for lounge-seats,mattresses, and other constructions of wire Where it is either desirableor necessary to firmly secure spiral springs together and at the same time furnish a bearing whereon a cushion, soft mattress, or the like may be'supported.

I claim and desire to secure by Letters Pat- I ent- In a spring structure of the class described, in combination, a plurality of spiral springs, arranged at equal distances from each other and in rectilinear rows, a rectangular frame of substantially the same length and width as the rows of springs, two strands of wire, extending across the ends of each row of springs and secured to two opposite and parallel'sides of the rectangular frame, two other 8 strands of Wire also extending, at right angles to the first-mentioned strands, across the ends of each row of springs and secured to the two remaining opposite and parallel sides of the rectangular frame, tie-rods, extending from the intersection of each strand of wire with each strand it crosses and terminating,

at each end, in an S hook, the terminal loops of which engage theintersectingstrandwires, gage the upper coils of the spiral springs, thereby securing each spring to four intersecting strand-wires and the strand-Wires together at all their intersections, substantially as and for the purpose specified.

In testimony whereof I have signed my and the adjacent loops of which enname to this specification in the presence of two subscribing witnesses.

EMIL A. HOEFER.

Witnesses:

F. W. HOEFER, A. G. HOEFER. 

